This study aims to determine the factors that influence the level of underpricing shares at the initial public offering. This study uses independent variables of underwriter reputation, share offering percentage, type of industry and intellectual capital disclosure with leverage and firm size as control variables. The population used in this study are all companies that conduct initial public offering (IPO) in Indonesia Stock Exchange period 2012-2016. Sampling research by using purposive sampling method with the acquisition of samples are 71 companies. The method of analysis used in this study is multiple linear regression analysis. The results showed that underwriter reputation, share offering percentage and type of industry have no effect on the underpricing. While the intellectual capital disclosure have negative effect on the underpricing. Control variables as leverage and firm size have no effect on the underpricing.